Centrifugal extractor.



`w.v BARTHOLUMBW GENTRIPUGAL EXTRAG'IOR.

APPLmATIoN FILED APRA. 1909.

v Patented N0v.23,1909.

SHEET 1.

2 SHEETS- WIr/@5555 W. BARTHOLMEW.

CENTRIFUGAL EXTRACTOR. APPLICATION PLBD APR.1, 190m Patented Nov.l 23, 1909. E v2 SHEETS-SHEET z.

Civ

Y for controlling the bottom.

pulley so as to be discharged into the cup QS for lubricating the lowei` end of the driving shaft 23. I l

The basket 13 is secured to the upper end ofthe shaft by means of a series of arms 5l extending toward its center, these arms being disposed at the central opening formed by the downwardly inclined bottom 52 of the basket. which is also provided with a packing ring 53. 'lhe arms aresecured to the shaft at 5st and removably held thereon by means of the nut 55 which is provided with an eye 56 to facilitate the ready removal of the nut if it be desired to remove the basket from the shaft. for cleansing or otliei purposes. The basket is provided with a central conical bottoni 5T which is slidably mounted upon the upper portion 58 olI the slia'lt 23 by incaiis of the screw 5S) which is provided atits upper portion with a securing flange o() for this conical bottoni. The bottom when in the position shown by full lines in Fig. l engages the packing 53 and provides a tight bottom for the basket. For the purpose of operating the screw 5S) a nut (31 is mounted upon the portion 5S ot' the shaft. and rests at. its lower end upon the shoulder (52. This nut is provided with a central opening (38 to receive the screw 5t) in its downward feed and also with a peripheral circumfereiitially extending rack (3l by which it', may be driven. The nut is held against vertical inoveineiit by means of a set ring G5 secured to the shaft.

l"or the purpose of operating the nut 6l for moving thc conical bottom of thebasket a. shal'tgtfiti is prmidcd land Vvmounted in a. beai'in;V GT upon the t'ranic l() for both a reciproratory and rotary movementtherein. The inner end of this shaft has secured thereto a pinion o5 and is also provided with a centering pin t3!) adapted to enter a peripheral groove T0 upon the' nut and secure a proper alineineiit of tho parts when in driving relation. The outcreiid oit thc shaft (Sti is -provided with a hand wheel 7l by which it, may be rotated for operating the screw v For the pur pose ot feeding the shaft into and out of mesh with the rack upon the nut an exl teriorly screw threaded sleeve 79. is mounted on the shaft (38 to rotate thereon and held against longitudinal movement by means of set screw 73 entering a grooveiii said shaft. This screw is supported -in `a depending iiange Tet from the casing l0 in Which flange afeed nut 75 is also mounted and held for' rotative nioveinent by means of the set screw 7f3. 'lhisiiut is provieed with a hand wheel 77 to lcll'ect a shift ot the shaft o6y and its driving gear from the position shown by full lilies in Fig. l tothat shown by dotted lines after the conical bottom has been lowered into the dottedline position or raised toy its t'ull line position shown in said ligure.

n the operation of the invention when the parts are in the position shown by full lines in Fig. 1 and the basket rotated by the driving shaft the moisture is extracted therefrom by the centrifugal movement' and discharged from thtl trough of the frame. lVhen it. is desired to discharge material from this basket the gearing upon the shifting shaft is ino-:ed inward into mesh with the rack upon the nut by the hand wheel upon the l'eed nut for said shaft and this shaft then rotated by its hand wheel to feed downward the conical bottom of the basket into the position shown by dotted lines in Fig. l so that the material within thtl basket. is discharged dircctly into the inclined trough or chut'e leading from the machine, and the bearings'beneath the conical bottom full protected against moisture or Contact wit the goods. When it' is desired to restore the sis parts to operative position the feed nut is revolved in the opposite direction andthe bottoni returned to its full line osition into contact with thel )aching upon t le basket byv which a tight joint is effected. The gear upon the shifting shaft is then thrown out of mesh with the rack upon the feed nut and the parts are then ready to be driven by power applied to the vertical` shaft. weight of the basket upon this shaft .causes it to ha ve a gyratory motion when the speed of rotation islow, and the spring arrangement of the cent-ral shaft bearing is such as to maintain this shaft in a vertical position under all conditions and to resist such niove nient by yielding pressure until the speed of rotation is sufficiently high to maintain the shaft and the basket in proper position b centrifugal force. The bearing forthe shaft also permits a lateral yielding thereof while exerting a constant pressure to maintain it in vertical position. The lubricating arrangement provides for lubricating both.

bearings by a single feed connection. The invention therefore resents a simple, eflicient and economical y constructed form of extractor in which a bottom delivery is effected and the driving shaft yieldingly supported.

l-laving described my invention and set forth its merits, what I claim and desire to secure by Letters Patent is l. In a centrifugal extractor, a casing, a driving shaft carrying a basket within the easing, a movable bottom to said basket, screw and nut shifting means beneath said bottom and connected thereto, and a' shafts geared to rotate one of said ineenst i 2. In a. centrifugal extractor, a (iisin'g, a

driving shaft carrying a basket within the casing, a movable bottom to said basket, a dependin feeding member from said bottom, rotata le shifting means beneath sa'id bottom and meshing with said member, and a shaft geared to rotate said means.

3. ln a centrifugal extractor, a casing, a driving shaftcarryingla basket within the casing, a movable bottom tosaid basket, rotatable shifting means beneath said bottom and connected thereto, a shaft geared to rotate said means, and a delivery chute disposed at the periphery of said movable bottom and inclined continuously downward, from one side toward a commonl delivery point.

4. In a centrifugal extractor, a casing, a Adriving shaft carrying a basket' withinsaid casing', a movable bottom to said basket, rotatable shifting. means beneath said bottom and connected thereto, a shaft-geared to rotate said means, a downwardly inclined delivery chute disposed at the periphery of said movable bottom, and 'a yielding bearing for said shaftdisposed beneath said bottom. f

5. In a centrifugal gextractor,v a casing, a driving shaft, a basket within the casing `and secured to the upper portion of said shaft, a central met able bottom provided.with a de` pending screw mounted to move longitudi nally on said shaft, a nut rotatably mounted on said shaft and connected to said screw, and means for rotating said nut.

6. In a centrifugal extractor, a; casing, a drivinfr shaft, a basket within thecasing and secured to the upper portion of said shaft, -a central movable bottom provided' with a' de-fi pending screw mounted to move longitude nally on said shaft ,a nut rotatably mounted on said shaft and connected to said screw, a shifting shaft provided with a gear to rotate? said nut, and means for moving said shaftv longitudinally into and outl of gear with saidj nut. 7. ln a centrifugal extractor, a casing,a1 driving shaft, a basket within the casingjand secured to the upper portion of said shaft, a'

central movable bottom provided with ade-A pending screw mountedto move longitudi- I nally on said shaft, a nut rotatably mounted on said shaft and connected to 'said screw, a shifting shaft provided with agear to 'rotate'H said nut, a feed screw rotatably mounted onvr said shifting shaft, and-anat engaging screw and mounted u on the mac ine trame;

8. ln a centrifuga extractor, a casing,abasket disposed therein, a driving shaft for y said basket, a centrally disposed movable/ 'bottom for said basket, a depending'screw carried by said bottom, a nut engaging said screw and rovided with a central opening, a periphera ly disposed rack carriedv by said nut, and a shaft having a gear engaging said rack.

' 9. In a'eentrifuga-l extractor, a casing, a basket disposed therein, a driving shaft for said basket, a centrally disposed movable bottom for said basket, a depending screw carried by Said bottom, a nut engaging said s' said l a peripherally disposed rack carried by said nut, a shafthaving a gear-engaging said rack, a peripherally disposed supporting said basket, a centrally disposed movable bottom for saidy basket, a depending screw carried by sai/,d bottom,v a. nut engaging said screw and lrovided with a central-opening, a peripheraily disposed rack carried by said nut, a lshaft having agear -engaging said rack, a supporting shoulderj for said nut upon saiddriving shaft, and a set collar secured to said shaft to retain said nut against yvertical movement.

ll. ln a centrifugal extractor, a easing, a basket disposed therein, a driving shaft for said basket, a movable bottom for said basket provided with a depending feed screw, a nut for shifting said screw having a peripheral rack thereon, a shifting shaft provided with a gear meshing' with said rack, a feed screw rotatably mounted upon said shaft land held against longitudinal movement-thereon, and a feed nut rotatably supported in a fixed member of the machine frame' and engaging said screw.

' l2. In a centrifugal extractor, a easing, a "basket disposed therein and lving a down Wardlyv Ainclined bottom, a drivingshaft,

"arms extending from said bottom to the upper 'end of 'said shaft, a conical central bot' tom, and means mounted upon said shaftbeneath Asaid bottom for reciprocating it toward and from the basket. 18. In a Icentrifugal extractor, a casing, a basket mounted therein, a driving shaft supported atv its lower end 'and connected to said basketatits upper end, a bearingdisk secured tosaid shaft intermediate of'its ends, an annular ring surrounding .said shaftand provided with .a coperating bearing disk, ball -mernbers dis osed betweenzsaid disks, ange. plurality o' yielding devices-bearing' up n said ring. A i A 14. ln a centrifugal extractor, a easing, a basket mounted therein, a driving shaft suport'ed atits lower end and connected to said gasket at its upper end','e bearing disk secured to said shaft intermediate of its ends, an annular ring surrounding said shaft and rovided with a coperating bearing disk, ball members disposed bet-Ween said disks, a plurality of yielding devices bearingu on said ring, and means for adjusting the `isk carried by said ring toward and from the shaft disk.

l5. ln a centrifugal extractor, a casing, a basket mounted therein, a driving shaft supported at its lower end and connected to said basket at its upper end, a bearing disk e screw and provided with a central opening,

secured to said shaft intermediate its ends,

ilo

an annular ring surrounding said shaft and provided with a eoperatmg bearlng disk,

ball members disposed between said disks, a

plurality of yielding devices bearing upon said ring, and a plate adjustably mounted upon one end of said ring and supporting the bearing disk of the ring.

16. In a centrifugal extractor, a casing, a basket mounted therein, a driving shaft supported at its lower end and connected at its upper end to said basket, a bearingA intermediate the ends of said shaft, a relatively. lixed annular ring surrounding said bearing, a surrounding annular frame provided with seats, and springs having one end engaging said ring and the opposite end disposed in said seais.

17. In a centrifugal extractor, a casing, a basket i/nounted therein, a driving shaft supported at its lower end and connected at its upper end to said basket, a bearing intermediate the ends ot' said shaft, an annular ring surrounding sa'id bearing and provided with a plurality of radiallyextending lugs, a surrounding annular frame provided with Seats, springs having one end embracing said lugs and the opposite end disposed in said seats, a movable plate disposed in said seats, a easing Within which said frame is secured, and tension adjusting screws mounted in the wall of said casing to bear upon the plates in said frame.

18."In a centrifugal extractor, a frame having an annular trough at its upper portion, a casing extended upward from said.

trough, a vertically disposed driving shaft, a vbasket carried by the upper end of said shaft within said casing, a downwardl movable bottom extending from said sha t to the bottom of said basket, a bearing easing for said shaft disposed beneath said bottom to be covered thereby when the bottom is in its lowered position', and an inclined discharge chute surrounding said bearing casing.

In testimony whereof I aliX my signature in presence of two witnesses.`

l WILLIAM BARTHOLOMEW. Witnesses y l R. C. RIORDAN,

VILLARD K. CLEMENT. 

